From what I've seen of the various manufacturers' products, it is really a matter of taste: obviously there are slight sound/decible differrences, slightly various design configurations, different coatings/finishes, different tips, different mounting brackets, etc. You cannot go wrong with any of them.
Now, that being said my tastes led me to Stillen and I could not be happier.:thumbsup
BTW, congrats on your first post!:banana